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Taiwan Semiconductor Corporation S1GBH
- Part No.:
- S1GBH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S1GBH.pdf
- Description:
- DIODE GEN PURP 400V 1A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
S1GBH from Taiwan Semiconductor is a surface-mount silicon rectifier diode with 400 V repetitive peak reverse voltage (VRRM), 1 A average forward current (IF), and 30 A surge capability (IFSM), designed for freewheeling, snubber, and DC-DC converter circuits in automotive lighting and industrial power supplies.
For engineers reviewing the S1GBH datasheet, S1GBH pinout, S1GBH application, or S1GBH equivalent, key selection criteria include its DO-214AA (SMB) package, AEC-Q101 qualification, 1.1 V max forward voltage at 1 A, 5 µA max reverse leakage at 25°C, and junction-to-lead thermal resistance of 30°C/W.
Technical Context
The S1GBH is a single-die, glass-passivated, planar-junction silicon rectifier optimized for high-reliability surface-mount operation. It supports continuous conduction up to 150°C junction temperature and withstands 8.3 ms half-sine surge currents up to 30 A without degradation.
Its electrical behavior is characterized by low forward voltage drop (≤1.1 V @ 1 A, 25°C), tight reverse leakage control (≤5 µA @ 400 V, 25°C), and stable junction capacitance (12 pF @ 1 MHz, 4 V), making it suitable for high-frequency switching and energy recovery applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum non-repetitive reverse voltage the device blocks reliably in circuit |
| IF | 1 A - Continuous average forward current rating at TA = 75°C on FR-4 PCB |
| IFSM | 30 A - Peak non-repetitive surge current handling for 8.3 ms half-sine waveform |
| VF (max) | 1.1 V @ 1 A, 25°C - Directly impacts conduction loss and thermal design in power stages |
| IR (max) | 5 µA @ 400 V, 25°C - Low leakage ensures minimal standby power loss in high-impedance nodes |
| RθJL | 30 °C/W - Enables thermal modeling from junction to lead for solder-joint reliability assessment |
| TJ max | 150 °C - Maximum allowable junction temperature under steady-state or transient operation |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, molded plastic case with matte tin-plated leads; polarity indicated by cathode band; weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential side of load or switch node in freewheeling path |
| Cathode (Lead 2) | Forward current exit / reverse voltage blocking terminal | Connected to higher-potential rail; cathode band marks this terminal for orientation during placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD47 |
| Glass-passivated junction | Enhances long-term stability of reverse leakage and breakdown characteristics under humidity and bias stress |
| Moisture sensitivity level 1 | No floor-life limitation or baking required before reflow; compatible with standard SMT assembly lines |
| UL 94V-0 molding compound | Meets flammability safety requirements for enclosed power electronics and automotive modules |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth on leads under thermal cycling, ensuring interconnect integrity over lifetime |
Applications
| Automotive LED Lighting | DC-DC Converter Freewheeling |
|---|---|
Use Scenario: Reverse-polarity protection and flyback energy clamping in 12 V/24 V automotive LED headlamp drivers. IC Role / Device Role / Timing Role: Freewheeling diode across inductive buck/boost switch node to recirculate stored energy. Use Value: 30 A IFSM rating handles cold-crank surge transients; 400 V VRRM accommodates load-dump spikes up to ISO 7637-2 Pulse 5a. | Use Scenario: Output rectification in isolated flyback or forward converters operating at 100–500 kHz. IC Role / Device Role / Timing Role: Unidirectional current path enabling energy transfer during transformer reset phase. Use Value: 1.1 V VF max limits conduction loss at 1 A output; 12 pF CJ minimizes switching loss contribution at high frequency. |
| Snubber Network Protection | Industrial AC-DC Input Stage |
Use Scenario: RC snubber across MOSFET/IGBT switches in motor drives and SMPS primary-side switching. IC Role / Device Role / Timing Role: Clamps voltage overshoot during turn-off by absorbing inductive kickback energy. Use Value: 400 V VRRM provides margin above 310 V DC bus; low IR ensures minimal snubber leakage current during hold-off. | Use Scenario: Bridge rectifier input stage in universal-input (85–265 VAC) industrial power supplies. IC Role / Device Role / Timing Role: Half-wave or full-wave rectification in discrete or hybrid bridge configurations. Use Value: AEC-Q101 qualification and 150°C TJ max support extended lifetime in thermally constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R04 | Same VRRM (400 V), same IF (1 A), but VF = 1.3 V (max) and IFSM = 25 A | Lacks AEC-Q101 qualification; not rated for automotive under-hood environments | Preferred where cost sensitivity outweighs automotive qualification and surge margin |
| ON Semi MUR140 | Same package (DO-214AA), same VRRM (400 V), but VF = 1.25 V (max) and TJ max = 175°C | Higher TJ max enables higher ambient operation but no AEC-Q101 validation | Selected when extended temperature range is critical and automotive compliance is not required |
Compared with STTH1R04 and MUR140, the S1GBH delivers tighter forward voltage (≤1.1 V), higher surge rating (30 A vs. ≤25 A), and verified AEC-Q101 qualification-making it the preferred choice for automotive lighting and industrial systems requiring proven reliability under stress.
Availability
S1GBH is available at Aetrix Electronics and suitable for automotive LED lighting, DC-DC converter freewheeling, and snubber network protection requiring stable component supply and traceable sourcing.
Supply support for S1GBH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The S1GBH belongs to TSC's S1x series of AEC-Q101-qualified surface-mount rectifiers, engineered specifically for robust performance in automotive power conversion and industrial snubbing applications where reliability under thermal and surge stress is critical.
FAQ
What is the maximum junction temperature rating for the S1GBH?
The S1GBH has a maximum junction temperature (TJ max) of +150°C, validated per JEDEC standards. This rating allows reliable operation in under-hood automotive environments and thermally dense industrial power supplies. Derating curves in the datasheet define safe operating area versus ambient temperature and thermal resistance. The S1GBH must be mounted on appropriate copper area to maintain junction temperature within limit during 1 A continuous conduction.
Is the S1GBH suitable for automotive applications?
Yes, the S1GBH is AEC-Q101 qualified, meaning it has passed stress tests including temperature cycling, high-temperature reverse bias, and mechanical shock required for automotive electronics. Its DO-214AA package, moisture sensitivity level 1, and glass-passivated junction further support use in automotive LED lighting, body control modules, and engine management subsystems. The S1GBH meets these requirements without derating or special handling.
What does the marking code 'S1GB' on the S1GBH indicate?
The marking code 'S1GB' on the S1GBH identifies it as part of Taiwan Semiconductor's S1x series with 400 V VRRM rating (G = 400 V). The full orderable part number is S1GBH; the 'H' suffix denotes the DO-214AA (SMB) package variant. This marking appears adjacent to the cathode band and is laser-etched for readability after reflow. No additional date or factory codes are required to identify the S1GBH in standard packaging.
How does the S1GBH compare to the S1JBH in terms of voltage rating?
The S1GBH has a VRRM of 400 V, while the S1JBH is rated for 600 V. Both share identical IF (1 A), IFSM (30 A), package (DO-214AA), and thermal specs (RθJL = 30°C/W, TJ max = 150°C). The S1GBH is selected when 400 V blocking margin suffices-such as in 24 V automotive systems or 310 V DC bus snubbers-offering tighter VF and potentially lower cost than the higher-voltage S1JBH.
What is the reverse leakage current specification for the S1GBH at elevated temperature?
The S1GBH specifies a maximum reverse leakage current (IR) of 50 µA at rated VRRM (400 V) and TJ = 125°C. At 25°C, IR is limited to 5 µA. This temperature-dependent leakage behavior is confirmed in the Electrical Specifications table and supports design of low-power standby circuits where leakage-induced losses must remain below µW-level thresholds. The S1GBH maintains this spec across its full qualified temperature range.
S1GBH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 12pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S1GBH FAQ
1.How can I place an order for S1GBH through Aetrix?
Please submit a Request for Quotation (RFQ) for S1GBH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for S1GBH reliable?
The price and inventory of S1GBH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1GBH is usually 5 days.
3.What payment methods are accepted for S1GBH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1GBH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S1GBH?
S1GBH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S1GBH order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S1GBH?
For technical support, including S1GBH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1GBH requirements.
6.How does Aetrix verify that S1GBH is sourced from the original manufacturer or authorized distributors?
All S1GBH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S1GBH meets industry standards.
7.What is the process for return or replacement of S1GBH?
All S1GBH units undergo pre-shipment inspection (PSI). If there is an issue with S1GBH, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S1GBH part is unused and in its original packaging.
Return procedure for S1GBH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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